Tectonic Plates

Question 1

What are the three layers of the earth?

Answer 1

Crust, Mantle, Core

Question 2

What are the two types of core of the earth? What are their states?

Answer 2

The inner core (solid) and the outer core (liquid)

Question 3

What are the two types of tectonic plates?

Answer 3

Continental and Oceanic

Question 4

What are the properties of a continental plate?

Answer 4

Thicker, older, lighter and does not subduct

Question 5

What are the properties of an oceanic plate?

Answer 5

Thinner, younger, denser and does subduct

Question 6

What is the definition of a plate boundary/margin?

Answer 6

The location where two tectonic plates meet or sit next to each other

Question 7

What causes tectonic plates to move?

Answer 7

Convection currents

Question 8

Where do convection currents occur?

Answer 8

In the mantle

Question 9

What are the three types of plate margins?

Answer 9

Constructive, destructive and conservative

Question 10

What are the plate margins doing at a constructive plate margin?

Answer 10

Moving apart, causing a gap and creating pressure

Question 11

What are plate margins doing at a destructive plate margin?

Answer 11

The oceanic plate is forced under the continental plate causing pressure and cracks in the plates

Question 12

What are plate margins doing at a conservative plate margin?

Answer 12

Sliding past each other, causing friction and pressure

Question 13

What types of plate margins do earthquakes occur on?

Answer 13

All types

Question 14

What types of plate margins do volcanoes occur on?

Answer 14

Constructive and destructive

Question 15

On destructive plate margins, what are the properties of volcanoes?

Answer 15

Highly explosive and a lot of lava and sulphur has is released

Question 16

What are hotspots?

Answer 16

Volcanic like structures that are not found on just plate margins

Question 17

Where about are hotspots found and how are they formed?

Answer 17

Along the earth’s crust where the mantle below is hotter and bubbles up in the lines of weakness

Question 18

What is the definition of a volcano?

Answer 18

An opening in the earth’s crust

Question 19

How are volcanos formed?

Answer 19

When magma rises to the surface

Question 20

What is the definition of an earthquake?

Answer 20

A sudden violent movement in the earth’s crust

Question 21

How are earthquakes formed?

Answer 21

A sudden release of tension within the tectonic plates

Question 22

What are some signs that a volcano is going to erupt?

Answer 22

Small earthquakes, oozing magma and sulphur gas emissions

Question 23

Where only do earthquakes and volcanoes occur?

Answer 23

Along plate boundaries

Question 24

What is a benefit of living near a volcano?

Answer 24

The ash that falls makes fertile soil, so places around volcanoes have a higher crop yield